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Animals are multicellular, eukaryotic organisms of the kingdom Animalia or Metazoa. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later on in their lives. Most animals are motile, meaning they can move spontaneously and independently. All animals must ingest other organisms or their products for sustenance (see Heterotroph).

Most known animal phyla appeared in the fossil record as marine species during the Cambrian explosion, about 542 million years ago. Animals are divided into various sub-groups, including birds, mammals, amphibians, reptiles, fish and insects.
-Wikipedia

Much like Marmite, people seem to either love or hate cats. And those that love their feline friends really love them. Those that don’t (generally dog people), however, claim cats are selfish creatures who show no affection and think th...